Castellan Shield Ship
A Battlefleet support ship, its role is to provide other warships with the vital defense they need to be able to close with the enemy. The Castellan is built around a single huge Void Shield generator which emanates from the ship in every direction and is powerful enough to extend its protection to any spaceship close to the Castellan. As the shield absorbs damage, the Tech-Priest custodians aboard desperately work to prevent a catastrophic overload. In order to prevent a meltdown, sometimes the shield must be shut down. Thus in battle a Castellan's captain must constantly assess the dangers of leaving the shield running or shutting it down to dissipate energy build-up.